I would do it for you, but cant because I am on Android...But its best if you learned how to extract and make one yourself because you can personalize some settings, add/remove search plugins and even use a INI file to turn off shortcuts and/or maintanence service

There are other settings you can add/change, I dont know many (I am sure others will reply with them.) But once you are done its very easy to rebuild the installer with a tool like 7zip sfx maker (if you cant make one manually)

Wait for more tips on personalizing your installer and stuff, I am sure you will get a few more

This is just a matter of creating an "entries.ini" file and packing it with the installer (who must be in a "svcpack" subfolder) into a cab/zip/rar/7zip archive.
English is not my native language so it is little hard to explain it better. Open any nLite/RVMi AddOn and you will understand.

For your pleasure, I have made a new maker that will also create a nLite/RVMi AddOn.

Mozilla_Firefox_maker_latest.zip size: 3,41 MB md5:456340F1531BF04CC0C0490BDCFA3711
one improved version for this maker
(wget automatic download, automatic version detection)
for non US version just edit this line in cmd script:

@vmanda: you can use 7za instead of cabarc to pack the AddOn, in my test zip is smaller than cab compression and it's one less executable to carry in the Binary folder.
7za is also much faster than cabarc.